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9604 Bellevanzuylen (1991 YW)
Classification: Main-belt Asteroid          SPK-ID: 2009604
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1334308969860426 3.7892e-08  
a 2.411673369475024 8.2252e-09 au
q 2.08988162854862 9.1955e-08 au
i 5.370258553515739 3.4118e-06 deg
node 130.6262855156204 4.3225e-05 deg
peri 274.3734627566357 4.5166e-05 deg
M 306.3674743672354 1.3306e-05 deg
tp 2459404.298933405342
(2021-Jul-08.79893341)
5.0831e-05 TDB
period 1367.968693629862
3.75
6.9983e-06
1.916e-08
d
yr
n .2631639171834782 1.3463e-09 deg/d
Q 2.733465110401428 9.3226e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1753  
   data-arc span      16047 days (43.93 yr)  
   first obs. used      1977-01-13  
   last obs. used      2020-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52031  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:49:44  

Additional Information
 Earth MOID = 1.10635 au 
 Jupiter MOID = 2.64023 au 
 T_jup = 3.501 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.41   n/a E2021B10  
rotation period rot_per 8.187 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

9604 Bellevanzuylen           Discovered 1991 Dec. 30 by E. W. Elst at Haute Provence.
Belle van Zuylen, pseudonym for Isabella Agneta Elisabeth van Tuyll van Serooskerken (1740-1805), descendant of ancient noblemen, was a Dutch writer from the Enlightenment. Primarily known from her extensive correspondence with the Scottish author James Boswell, she wrote also novels, plays and pamphlets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070730/MPCPages.arcLast Updated: 2007-08-07

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Alternate Designations
 1991 YW = 1977 AY = 1995 WW31 = 1997 LS16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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